Multiple choice

Directions: Select the best option to fill up the blank.

Cryogenics is _______ the production of extremely low temperatures and the effects that take place under such conditions.

  1. that scientific branch concerning with

  2. a branch of science concerned with

  3. concerned with a branch of science

  4. concerned a science and branch
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

(a branch of science concerned with). Correct word order. All the other options make use of words which makes the sentence incomplete. 

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